<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
<!--      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>-->
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['product:category:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-sort"
          size="mini"
          @click="toggleExpandAll"
        >展开/折叠
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
      v-if="refreshTable"
      v-loading="loading"
      :data="categoryList"
      row-key="categoryId"
      :default-expand-all="isExpandAll"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
    >
      <el-table-column label="分类名称" prop="categoryName"/>
      <el-table-column label="图片" align="center" prop="picture" width="280">
        <template slot-scope="scope">
          <image-preview :src="scope.row.picture" :width="280" :height="80"/>
        </template>
      </el-table-column>
      <el-table-column label="状态" align="center" prop="status">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.pro_category_status" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column label="排序号" align="center" prop="seq"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['product:category:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-hasPermi="['product:category:add']"
          >新增
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['product:category:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改分类管理对话框 -->

    <el-dialog :title="title" :visible.sync="open" width="60%" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="12">
            <el-form-item label="分类名称" prop="categoryName">
              <el-input v-model="form.categoryName" placeholder="请输入分类名称"/>
            </el-form-item>
            <el-form-item label="状态" prop="status">
              <el-radio-group v-model="form.status">
                <el-radio
                  v-for="dict in dict.type.pro_category_status"
                  :key="dict.value"
                  :label="dict.value"
                >{{ dict.label }}
                </el-radio>
              </el-radio-group>
            </el-form-item>
            <el-form-item label="排序" prop="seq">
              <el-input-number v-model="form.seq" controls-position="right"
                               @change="handleChange" :min="1" :max="1000"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="上级目录" prop="parentId">
              <treeselect v-model="form.parentId" :options="categoryOptions" :normalizer="normalizer"
                          placeholder="请选择父节点"/>
            </el-form-item>
            <el-form-item label="店铺名称" prop="shopId">
              <el-select v-model="form.shopId" placeholder="请输入店铺ID">
                <el-option
                  v-for="dict in shopList"
                  :key="dict.shopId"
                  :label="dict.shopName"
                  :value="dict.shopId"
                />
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
        <el-form-item label="图片" prop="picture">
          <image-upload v-model="form.picture"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {listCategory, getCategory, delCategory, addCategory, updateCategory} from "@/api/product/category";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";
import {listDetail} from "@/api/outlet/detail";

export default {
  name: "Category",
  dicts: ['pro_category_status'],
  components: {
    Treeselect
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 分类管理表格数据
      categoryList: [],
      // 分类管理树选项
      categoryOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {},
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        categoryName: [
          {required: true, message: "分类名称不能为空", trigger: "blur"}
        ],
        picture: [
          {required: true, message: "图片不能为空", trigger: "blur"}
        ],
        status: [
          {required: true, message: "状态不能为空", trigger: "change"}
        ],
        seq: [
          {required: true, message: "排序号不能为空", trigger: "blur"}
        ],
        parentId: [
          {required: true, message: "父节点不能为空", trigger: "blur"}
        ],
        icon: [
          {required: true, message: "图标不能为空", trigger: "change"}
        ],
      },
      //店铺数据
      shopList: []
    };
  },
  created() {
    this.getList();
    this.shopLists();
  },
  methods: {
    handleChange(value) {
      this.form.seq = value
    },
    //店铺数据获取
    shopLists() {
      this.loading = true;
      listDetail(this.queryParams).then(response => {
        this.shopList = response.rows;
      });
    },
    /** 查询分类管理列表 */
    getList() {
      this.loading = true;
      listCategory(this.queryParams).then(response => {
        this.categoryList = this.handleTree(response.data, "categoryId", "parentId");
        this.loading = false;
      });
    },
    /** 转换分类管理数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.categoryId,
        label: node.categoryName,
        children: node.children
      };
    },
    /** 查询分类管理下拉树结构 */
    getTreeselect() {
      listCategory().then(response => {
        this.categoryOptions = [];
        const data = {categoryId: 0, categoryName: '顶级节点', children: []};
        data.children = this.handleTree(response.data, "categoryId", "parentId");
        this.categoryOptions.push(data);
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        categoryId: null,
        categoryName: null,
        picture: null,
        status: null,
        seq: null,
        parentId: null,
        shopId: null,
        icon: null,
        createTime: null,
        updateTime: null,
        grade: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset();
      this.getTreeselect();
      if (row != null && row.categoryId) {
        this.form.parentId = row.categoryId;
      } else {
        this.form.parentId = 0;
      }
      this.open = true;
      this.title = "添加分类管理";
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false;
      this.isExpandAll = !this.isExpandAll;
      this.$nextTick(() => {
        this.refreshTable = true;
      });
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      if (row != null) {
        this.form.parentId = row.parentId;
      }
      getCategory(row.categoryId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改分类管理";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.categoryId != null) {
            updateCategory(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addCategory(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal.confirm('是否确认删除分类管理编号为"' + row.categoryId + '"的数据项？').then(function () {
        return delCategory(row.categoryId);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      });
    }
  }
};
</script>
